Keep/keep-notes/prisma/client-generated/schema.prisma

// This is your Prisma schema file,
// learn more about it in the docs: https://pris.ly/d/prisma-schema

generator client {
  provider = "prisma-client-js"
  output   = "./client-generated"
}

datasource db {
  provider = "sqlite"
  url      = env("DATABASE_URL")
}

model User {
  id               String      @id @default(cuid())
  name             String?
  email            String      @unique
  emailVerified    DateTime?
  password         String? // Hashed password
  role             String      @default("USER") // "USER" or "ADMIN"
  image            String?
  theme            String      @default("light")
  resetToken       String?     @unique
  resetTokenExpiry DateTime?
  accounts         Account[]
  sessions         Session[]
  notes            Note[]
  labels           Label[]
  notebooks        Notebook[] // NEW: Relation to notebooks
  receivedShares   NoteShare[] @relation("ReceivedShares")
  sentShares       NoteShare[] @relation("SentShares")

  // Phase 1 AI Relations
  aiFeedback         AiFeedback[]
  aiSettings         UserAISettings?
  memoryEchoInsights MemoryEchoInsight[]

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
}

model Account {
  userId            String
  type              String
  provider          String
  providerAccountId String
  refresh_token     String?
  access_token      String?
  expires_at        Int?
  token_type        String?
  scope             String?
  id_token          String?
  session_state     String?

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  user User @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@id([provider, providerAccountId])
}

model Session {
  sessionToken String   @unique
  userId       String
  expires      DateTime
  user         User     @relation(fields: [userId], references: [id], onDelete: Cascade)

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
}

model VerificationToken {
  identifier String
  token      String
  expires    DateTime

  @@id([identifier, token])
}

// NEW: Notebook model for organizing notes
model Notebook {
  id        String   @id @default(cuid())
  name      String
  icon      String? // Emoji or icon name
  color     String? // Hex color for personalization
  order     Int // Manual order for drag & drop
  userId    String
  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  notes     Note[] // Notes can belong to a notebook
  labels    Label[] // Labels are contextual to this notebook
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  @@index([userId, order])
  @@index([userId])
}

model Label {
  id         String    @id @default(cuid())
  name       String
  color      String    @default("gray")
  notebookId String? // TEMPORARY: Optional for migration, will be required later
  notebook   Notebook? @relation(fields: [notebookId], references: [id], onDelete: Cascade)
  notes      Note[] // NEW: Many-to-many relation with notes
  userId     String? // DEPRECATED: Kept for migration, will be removed after migration
  user       User?     @relation(fields: [userId], references: [id], onDelete: Cascade)
  createdAt  DateTime  @default(now())
  updatedAt  DateTime  @updatedAt

  @@unique([notebookId, name]) // NEW: Labels are unique within a notebook (ignored if notebookId is null)
  @@index([notebookId])
  @@index([userId]) // DEPRECATED: Keep for now, remove after migration
}

model Note {
  id                 String      @id @default(cuid())
  title              String?
  content            String
  color              String      @default("default")
  isPinned           Boolean     @default(false)
  isArchived         Boolean     @default(false)
  type               String      @default("text") // "text" or "checklist"
  checkItems         String? // For checklist items stored as JSON string
  labels             String? // Array of label names stored as JSON string (DEPRECATED)
  images             String? // Array of image URLs stored as JSON string
  links              String? // Array of link metadata stored as JSON string
  reminder           DateTime? // Reminder date and time
  isReminderDone     Boolean     @default(false)
  reminderRecurrence String? // "none", "daily", "weekly", "monthly", "custom"
  reminderLocation   String? // Location for location-based reminders
  isMarkdown         Boolean     @default(false) // Whether content uses Markdown
  size               String      @default("small") // "small", "medium", "large"
  embedding          String? // Vector embeddings stored as JSON string for semantic search
  sharedWith         String? // Array of user IDs (collaborators) stored as JSON string
  userId             String? // Owner of the note
  user               User?       @relation(fields: [userId], references: [id], onDelete: Cascade)
  shares             NoteShare[] // All share records for this note
  order              Int         @default(0)

  // NEW: Notebook relation (optional - null = "Notes générales" / Inbox)
  notebookId String? // NULL = note is in general notes
  notebook   Notebook? @relation(fields: [notebookId], references: [id], onDelete: SetNull)

  // NEW: Many-to-many relation with labels
  labelRelations Label[] // Uses implicit _NoteToLabel junction table

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  // Phase 1 AI Extensions
  autoGenerated      Boolean? // True if title/content was AI-generated
  aiProvider         String? // 'openai' | 'ollama'
  aiConfidence       Int? // 0-100 (collected Phase 1, UI Phase 3)
  language           String? // ISO 639-1: 'fr', 'en', 'es', 'de', 'fa'
  languageConfidence Float? // 0.0-1.0
  lastAiAnalysis     DateTime? // Timestamp of last AI analysis

  // Relations for Phase 1 AI
  aiFeedback        AiFeedback[]
  memoryEchoAsNote1 MemoryEchoInsight[] @relation("EchoNote1")
  memoryEchoAsNote2 MemoryEchoInsight[] @relation("EchoNote2")

  @@index([isPinned])
  @@index([isArchived])
  @@index([order])
  @@index([reminder])
  @@index([userId])
  @@index([userId, notebookId]) // NEW: For filtering notes by notebook
}

model NoteShare {
  id          String    @id @default(cuid())
  noteId      String
  note        Note      @relation(fields: [noteId], references: [id], onDelete: Cascade)
  userId      String
  user        User      @relation("ReceivedShares", fields: [userId], references: [id], onDelete: Cascade)
  sharedBy    String // User ID who shared the note
  sharer      User      @relation("SentShares", fields: [sharedBy], references: [id], onDelete: Cascade)
  status      String    @default("pending") // "pending", "accepted", "declined", "removed"
  permission  String    @default("view") // "view", "comment", "edit"
  notifiedAt  DateTime?
  respondedAt DateTime?
  createdAt   DateTime  @default(now())
  updatedAt   DateTime  @updatedAt

  @@unique([noteId, userId])
  @@index([userId])
  @@index([status])
  @@index([sharedBy])
}

model SystemConfig {
  key   String @id
  value String
}

// Phase 1 MVP AI Models

model AiFeedback {
  id               String   @id @default(cuid())
  noteId           String
  userId           String?
  feedbackType     String // 'thumbs_up' | 'thumbs_down' | 'correction'
  feature          String // 'title_suggestion' | 'memory_echo' | 'semantic_search' | 'paragraph_refactor'
  originalContent  String // JSON string of AI-generated content
  correctedContent String? // User's modified version
  metadata         String? // JSON string for additional data (provider, model, timestamp)
  createdAt        DateTime @default(now())

  note Note  @relation(fields: [noteId], references: [id], onDelete: Cascade)
  user User? @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@index([noteId])
  @@index([userId])
  @@index([feature])
}

model MemoryEchoInsight {
  id              String   @id @default(cuid())
  userId          String?
  note1Id         String
  note2Id         String
  similarityScore Float
  insight         String // AI-generated explanation of the connection
  insightDate     DateTime @default(now())
  viewed          Boolean  @default(false)
  feedback        String? // 'thumbs_up' | 'thumbs_down'
  dismissed       Boolean  @default(false) // User dismissed this connection

  note1 Note  @relation("EchoNote1", fields: [note1Id], references: [id], onDelete: Cascade)
  note2 Note  @relation("EchoNote2", fields: [note2Id], references: [id], onDelete: Cascade)
  user  User? @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@unique([userId, insightDate])
  @@index([userId, insightDate])
  @@index([userId, dismissed]) // For filtering dismissed connections
}

model UserAISettings {
  userId String @id

  // Feature Flags (granular ON/OFF)
  titleSuggestions  Boolean @default(true)
  semanticSearch    Boolean @default(true)
  paragraphRefactor Boolean @default(true)
  memoryEcho        Boolean @default(true)

  // Configuration
  memoryEchoFrequency String  @default("daily") // 'daily' | 'weekly' | 'custom'
  aiProvider          String  @default("auto") // 'auto' | 'openai' | 'ollama'
  preferredLanguage   String  @default("auto") // 'auto' | 'en' | 'fr' | 'es' | 'de' | 'fa' | 'it' | 'pt' | 'ru' | 'zh' | 'ja' | 'ko' | 'ar' | 'hi' | 'nl' | 'pl'
  fontSize            String  @default("medium") // 'small' | 'medium' | 'large' | 'extra-large'
  demoMode            Boolean @default(false) // Demo mode for testing Memory Echo

  // Relation
  user User @relation(fields: [userId], references: [id], onDelete: Cascade)

  // Indexes for analytics
  @@index([memoryEcho])
  @@index([aiProvider])
  @@index([memoryEchoFrequency])
  @@index([preferredLanguage])
}